Hudson, Norman <br/><br/>
Soil Conservation 
= Bảo vệ đất 
Norman Hudson 

 - 1st. 
 - London  B T Batsford Limited  1971 
 - 320p.  21cm. 
<br/><br/>References: P.300 - 301 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil
<br/><br/><label>Subjects--Index Terms: </label>Soil Soil erosion Mechanics Erodibiliti Gully erosion 
<br/><br/><label>Dewey Class. No.: </label>631.6  / S